Firefighter Mechanical Aptitude · Question
Which of the following best describes the function of a screw?
A screw is essentially an inclined plane wrapped around a cylinder. It converts rotational input into linear output, providing a significant mechanical advantag
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Question: Which of the following best describes the function of a screw?
Answer options: ✅ It converts rotational motion into linear motion and multiplies force.
- It converts linear motion into rotational motion and multiplies speed.
- It is used primarily to change the direction of force.
- It halves the required effort force.
Correct answer: It converts rotational motion into linear motion and multiplies force.
Explanation: A screw is essentially an inclined plane wrapped around a cylinder. It converts rotational input into linear output, providing a significant mechanical advantage to multiply force.
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- Scenario 1: Which simple machine uses a fulcrum to multiply force or change the direction of force?
- Scenario 2: If a hydraulic jack has a small piston with an area of 5 cm² and a large piston with an area of 50
- Scenario 3: Which of the following would require the MOST force to move?
- Scenario 4: A rope is tied to a heavy box. Instead of pulling the box directly, a firefighter wraps the rope a
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